7.1 sec in total
683 ms
6.2 sec
229 ms
Click here to check amazing Uchu Dou content. Otherwise, check out these important facts you probably never knew about uchu-dou.co.jp
株式会社宇宙堂八木書店は臨床病理レビュー、臨床検査関連書籍の専門書店です。
Visit uchu-dou.co.jpWe analyzed Uchu-dou.co.jp page load time and found that the first response time was 683 ms and then it took 6.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
uchu-dou.co.jp performance score
name
value
score
weighting
Value3.4 s
38/100
10%
Value9.5 s
0/100
25%
Value6.9 s
33/100
10%
Value220 ms
88/100
30%
Value0
100/100
15%
Value6.0 s
64/100
10%
683 ms
383 ms
391 ms
398 ms
398 ms
Our browser made a total of 56 requests to load all elements on the main page. We found that 98% of them (55 requests) were addressed to the original Uchu-dou.co.jp, 2% (1 request) were made to Badge.facebook.com. The less responsive or slowest element that took the longest time to load (4.3 sec) belongs to the original domain Uchu-dou.co.jp.
Page size can be reduced by 66.1 kB (24%)
276.8 kB
210.7 kB
In fact, the total size of Uchu-dou.co.jp main page is 276.8 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 206.8 kB which makes up the majority of the site volume.
Potential reduce by 21.5 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 9.2 kB, which is 35% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 21.5 kB or 82% of the original size.
Potential reduce by 9.1 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Uchu Dou images are well optimized though.
Potential reduce by 6.6 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 6.6 kB or 67% of the original size.
Potential reduce by 29.0 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Uchu-dou.co.jp needs all CSS files to be minified and compressed as it can save up to 29.0 kB or 85% of the original size.
Number of requests can be reduced by 15 (27%)
55
40
The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Uchu Dou. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
uchu-dou.co.jp
683 ms
import.css
383 ms
web.js
391 ms
judge.js
398 ms
minmax.js
398 ms
ie7_flash.js
471 ms
top.css
419 ms
base.css
412 ms
content.css
424 ms
form.css
423 ms
shop.css
434 ms
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3527 ms
uchu-dou.co.jp accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Image elements do not have [alt] attributes
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
uchu-dou.co.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
uchu-dou.co.jp SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
JA
JA
EUC-JP
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Uchu-dou.co.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Uchu-dou.co.jp main page’s claimed encoding is euc-jp. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
uchu-dou.co.jp
Open Graph description is not detected on the main page of Uchu Dou. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: